ARM: Thumb2 copy for GPRPair needs to use thumb instructions.

Use tMOVr instead of plain MOVr.

rdar://15193017

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193139 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp
index 98e0fd2a66731bbd4252e0e009b32636ab3b1108..fe18851690b77618369fb80d27e29db26143d84e 100644 (file)
--- a/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -712,7 +712,7 @@ void ARMBaseInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
     BeginIdx = ARM::dsub_0;
     SubRegs = 4;
   } else if (ARM::GPRPairRegClass.contains(DestReg, SrcReg)) {
-    Opc = ARM::MOVr;
+    Opc = Subtarget.isThumb2() ? ARM::tMOVr : ARM::MOVr;
     BeginIdx = ARM::gsub_0;
     SubRegs = 2;
   } else if (ARM::DPairSpcRegClass.contains(DestReg, SrcReg)) {